{"instruction": "You are an expert in named entity recognition. Please extract entities that match the schema definition from the input. Return an empty list if the entity type does not exist. Please respond in the format of a JSON string.", "schema": ["engineering feature", "biomedical", "material", "concept or principle", "enabling technology"], "input": "The arc penetration in tandem orientation is augmented by the secondary arc that operates in the same weld pool ."}
{"engineering feature": [], "biomedical": [], "material": [], "concept or principle": ["arc", "orientation", "weld pool"], "enabling technology": []}